as the exterior angle is known
sum of that angle and f angle = 180
142 + f = 180
f = 180 - 142
f = 38
Answer:

Step-by-step explanation:

Answer:
The cost of n gluten-free bags is $7 times n, therefore, $7n< or equal to $28. Hope this helps.
Step-by-step explanation:
You will need more information for people to answer this, and it depends on how big each piece is.
Answer:
m = -3/4
Step-by-step explanation:
-5 - 1 / 6 - -2 = -6/8 = -3/4